Founded in 1979, Fullerton Sherwood began by providing engineering services to the diving and medical hyperbaric communities. By 1982, the company's activities had expanded to include the design and manufacture of diving and medical hyperbaric systems as well as the provision of project management and consulting services. A strategic joint venture in the early 1980s provided Fullerton Sherwood with the latest technology to manufacture, market, and service one-man mini-submarines and remotely operated vehicles in the Canadian offshore market. The company also continued to consolidate its position as a leading designer and manufacturer of ambient pressure diving systems as well as a reliable source of expertise in life support technology.

As a result of an unsolicited proposal to the Canadian Forces, Fullerton Sherwood developed a rebreather for deep mine countermeasures and shallow covert diving operations and captured the world leadership position.

Today, CLST continues to develop and manufacture an expanding line of military rebreathing equipment for MCM, special forces, and maritime anti-terrorist activities. CLST also offers engineering, maintenance, and custom-manufacturing services related to diving and hyperbaric systems for military customers.

• SIVA Clearance Divers Breathing Apparatus
• Fixed, transportable, and portable recompression chambers
• Saturation diving systems
• Tunnel rescue breathing apparatus
• High altitude test and training facilities
• Search and rescue breathing systems
• Portable divers gas panels
• Multi-place hyperbaric oxygen facilities

• Hyperbaric medical facilities
• Life support equipment
• Diving systems and equipment
• Aero-medical facilities
• Respiratory protection
• Control systems
• Underwater work systems
• Training facilities

• Canadian Department of National Defense
• U.S. Navy
• Royal Navy (UK)
• Royal Australian Navy
• Can-Dive Services Ltd.
• Hard Suits Ltd.
• Many NATO and Asian military clients *

Professional and Industry Associations:

• ISO 9001 certified
• Professional Engineers of Ontario
• Canadian Standards Association
  • Member of five active standards-writing committees
  • Member of Occupational Health and Safety Steering Committee
  • Chairman of Diving and Caisson Technical Committee
• Canadian Association of Diving Contractors
  • Past President
  • Board of Directors
  • Chairman, Technical Committee
• Undersea Medical Society (Great Lakes Chapter)
  • Past Vice President
• Seneca College of Applied Arts and Technology
  • Past Chairman and Current Member of Underwater Skills Advisory Board
• Human Factors Association of Canada
• Institute of Diving
• Mine Warfare and Clearance Diving Officers Association